In this intricate caper, Doc Fletcher Michael Caine is a sharp, financially savvy operator who travels to Lugano to secure a bank for his boss, the American mobster Joe Fiore. The bank—housed in shabby offices above a pizza restaurant—luckily has only a few hundred dollars in assets, and its future hinges on appearances more than actual resources. To give the venture some legitimacy, the impoverished Italian prince, Louis Jourdan — the man known as Gianfranco di Siracusa — agrees to act as chairman of the board, lending an air of dignity to the operation.
The high-stakes plan leans on a glittering but dangerous dream: a silver mine in Iran, supposedly discovered by the Firdausis, David Warner as Agha Firdausi and Stéphane Audran as Shireen Firdausi. The mine, they say, contains about $1 billion in untapped silver. After a visit to Iran, Doc secures $5 million from Agha as security for a $20 million loan, which he uses to upgrade the bank’s premises and stage a spectacular show to attract powerful investors.
In London, a major complication looms. Charles Cook, a metals dealer and one of the world’s wealthiest men, worries about a drop in silver prices caused by Firdausi’s metals entering the market. He discovers that Lugano’s bank is financing the operation and decides that the best move is to take over the bank. He reaches out to Henry Foreman, president of the First National Bank of California, who agrees to the scheme and dispatches Donald Luckman to Lugano to meet Doc and his circle. Luckman’s probing questions raise suspicions, so Doc turns to Debbie Luckman for help in learning what Cook knows. Debbie’s information reveals Cook’s interest in the mine and the bank, giving the conspirators more leverage.
Luckman returns with an offer: up to $60 million for the bank. Fiore leaps at the chance, but Doc resists selling and persuades Fiore to grant him time to bid his own price. The plan then moves to Dubai, where Doc and the Firdausis secure another $60 million to buy the bank. The twist reveals the mine to be a sham: there is no silver at all—the whole mine is a front used to drum up money for a larger fraud.
With Foreman now owning the bank, he confronts Cook and demands an exorbitant sum for the non-existent silver mine. Cook bluntly informs him that the mine doesn’t exist and that there will be no refunds. Foreman sees a way to salvage the scheme through the bank’s insurance: the fraud report mentions non-existent “oil storage tanks,” providing a path to criminal prosecution. Doc counters with a further offer of $10 million, to be drawn from Cook, in exchange for exclusive purchasing rights to Firdausi silver. Foreman hands over the bank to Doc as the plan tightens its grip.
Luckman, sensing exposure, pushes the others to agree that there must be a criminal prosecution and a scapegoat to go to prison. They settle on Luckman himself, since he was the one who falsified the report, preparing the stage for the impending downfall.
Back in Lugano, the web tightens around the players. The Prince marries Shireen Firdausi, but Agha Firdausi does not attend. Shireen confesses that he was, in fact, an actor she hired to secure a loan of $20 million to a woman. Doc’s path crosses with Debbie again, who has been following Donald Luckman’s fraud trial and plans to stay near the jail to keep a close watch. Doc also notes that his own house sits conveniently near the prison, a quiet reminder that the game is never just about money—it’s about control, deception, and the ever-present possibility of a fall from grace.